262464716885281 has 2 divisors, whose sum is σ = 262464716885282. Its totient is φ = 262464716885280.

The previous prime is 262464716885279. The next prime is 262464716885291. The reversal of 262464716885281 is 182588617464262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256849215098256 + 5615501787025 = 16026516^2 + 2369705^2 .

It is a cyclic number.

It is not a de Polignac number, because 262464716885281 - 2¹ = 262464716885279 is a prime.

It is a super-2 number, since 2×262464716885281² (a number of 30 digits) contains 22 as substring.

Together with 262464716885279, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 262464716885281.

It is not a weakly prime, because it can be changed into another prime (262464716885201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131232358442640 + 131232358442641.

It is an arithmetic number, because the mean of its divisors is an integer number (131232358442641).

Almost surely, 2^{262464716885281} is an apocalyptic number.

It is an amenable number.

262464716885281 is a deficient number, since it is larger than the sum of its proper divisors (1).

262464716885281 is an equidigital number, since it uses as much as digits as its factorization.

262464716885281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 495452160, while the sum is 70.

The spelling of 262464716885281 in words is "two hundred sixty-two trillion, four hundred sixty-four billion, seven hundred sixteen million, eight hundred eighty-five thousand, two hundred eighty-one".